11215401233420 has 48 divisors (see below), whose sum is σ = 23905322444640. Its totient is φ = 4418934372864.

The previous prime is 11215401233383. The next prime is 11215401233441. The reversal of 11215401233420 is 2433210451211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22573112 + ... + 23064608.

It is an arithmetic number, because the mean of its divisors is an integer number (498027550930).

Almost surely, 2^{11215401233420} is an apocalyptic number.

11215401233420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11215401233420 is an abundant number, since it is smaller than the sum of its proper divisors (12689921211220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11215401233420 is a wasteful number, since it uses less digits than its factorization.

11215401233420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508602 (or 508600 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 11215401233420 its reverse (2433210451211), we get a palindrome (13648611684631).

The spelling of 11215401233420 in words is "eleven trillion, two hundred fifteen billion, four hundred one million, two hundred thirty-three thousand, four hundred twenty".